315252320520 has 32 divisors (see below), whose sum is σ = 945756961920. Its totient is φ = 84067285440.

The previous prime is 315252320489. The next prime is 315252320521. The reversal of 315252320520 is 25023252513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (315252320521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313551216 + ... + 1313551455.

It is an arithmetic number, because the mean of its divisors is an integer number (29554905060).

Almost surely, 2^315252320520 is an apocalyptic number.

315252320520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315252320520 is an abundant number, since it is smaller than the sum of its proper divisors (630504641400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315252320520 is a wasteful number, since it uses less digits than its factorization.

315252320520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627102685 (or 2627102681 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 315252320520 in words is "three hundred fifteen billion, two hundred fifty-two million, three hundred twenty thousand, five hundred twenty".